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I received my jig for the double today, along with all the other goodies. One question I have is on the jig itself there appears to a frog grinding groove. But I also have the number 7 filing jig which I presume is for the turnouts, and I have another filing jig labeled xover. What am I using where? the ones on the jig looks similar to the one labeled xover.
The 7X Frog jig is for forming the crossing frog points, which have a different angle than the #7 turnouts do. The grooves in the corners of the fixture are for shaping the ends of the rails at the very center of the crossover, these are the same angle as the frog jig, but are meant for only light use, as I believe you intend on constructing several crossovers I suggest using the more durable steel frog jig for this. I prefer to use separate pieces of rail for the rails of a crossing instead of bending them, and using the jig for this will allow you to precisely form the angles on the end of the rail to do this.
Have a look at the crossover instructions on the site, although they are written for crossover fixtures that construct two halves instead of how yours works, you might find some useful information there about constructing the crossing portion.
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